diff options
Diffstat (limited to 'dts/Bindings/gpio')
| -rw-r--r-- | dts/Bindings/gpio/cortina,gemini-gpio.txt | 24 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-pca953x.txt | 4 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio.txt | 8 |
3 files changed, 32 insertions, 4 deletions
diff --git a/dts/Bindings/gpio/cortina,gemini-gpio.txt b/dts/Bindings/gpio/cortina,gemini-gpio.txt new file mode 100644 index 0000000000..5c9246c054 --- /dev/null +++ b/dts/Bindings/gpio/cortina,gemini-gpio.txt @@ -0,0 +1,24 @@ +Cortina Systems Gemini GPIO Controller + +Required properties: + +- compatible : Must be "cortina,gemini-gpio" +- reg : Should contain registers location and length +- interrupts : Should contain the interrupt line for the GPIO block +- gpio-controller : marks this as a GPIO controller +- #gpio-cells : Should be 2, see gpio/gpio.txt +- interrupt-controller : marks this as an interrupt controller +- #interrupt-cells : a standard two-cell interrupt flag, see + interrupt-controller/interrupts.txt + +Example: + +gpio@4d000000 { + compatible = "cortina,gemini-gpio"; + reg = <0x4d000000 0x100>; + interrupts = <22 IRQ_TYPE_LEVEL_HIGH>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; +}; diff --git a/dts/Bindings/gpio/gpio-pca953x.txt b/dts/Bindings/gpio/gpio-pca953x.txt index 08dd15f89b..e639357100 100644 --- a/dts/Bindings/gpio/gpio-pca953x.txt +++ b/dts/Bindings/gpio/gpio-pca953x.txt @@ -29,6 +29,10 @@ Required properties: onsemi,pca9654 exar,xra1202 +Optional properties: + - reset-gpios: GPIO specification for the RESET input. This is an + active low signal to the PCA953x. + Example: diff --git a/dts/Bindings/gpio/gpio.txt b/dts/Bindings/gpio/gpio.txt index 68d28f62a6..84ede036f7 100644 --- a/dts/Bindings/gpio/gpio.txt +++ b/dts/Bindings/gpio/gpio.txt @@ -187,10 +187,10 @@ gpio-controller's driver probe function. Each GPIO hog definition is represented as a child node of the GPIO controller. Required properties: -- gpio-hog: A property specifying that this child node represent a GPIO hog. -- gpios: Store the GPIO information (id, flags, ...). Shall contain the - number of cells specified in its parent node (GPIO controller - node). +- gpio-hog: A property specifying that this child node represents a GPIO hog. +- gpios: Store the GPIO information (id, flags, ...) for each GPIO to + affect. Shall contain an integer multiple of the number of cells + specified in its parent node (GPIO controller node). Only one of the following properties scanned in the order shown below. This means that when multiple properties are present they will be searched in the order presented below and the first match is taken as the intended |